External characters
massive, forming ridges.
Colour
white in life; white in ethanol.
Skeletal Characters
| Oscules | mostly apical to ridges; in ethanol, form a row of 5 medium-sized, open oscules, flush with surface. |
| Texture | hard, brittle, breaks easily. |
| Surface_Ornamentation | smooth, slightly areolate. |
| Ectosomal_Skeleton | dense, disorganised, tangential layer of megascleres forms thin but continuous ectosome, which originates from supporting primary tracts. |
| Choanosomal_Skeleton | subectosomal region consists of branching primary tracts; multispicular primary tracts dominate choanosome, with less organised secondary tracts forming mostly rounded, irregular meshes. |
| Megascleres | oxeas. |
| Microscleres | nil. |
| Mudmap_Author | P Sutcliffe |
| Mudmap_Editor | Kathryn Hall |
Distribution
In French Polynesia: Marquesas and Tuamotu islands
Ecology and habitat
In the lagoon, on pinnacles.
In caves.
P Sutcliffe (2014). QM4688 Xestospongia sp. (OTU QM4688) . In: Hall, K.A. & Hooper, J.N.A. (2014) SpongeMaps: an online community for taxonomy and identification of sponges. (Available at http://www.spongemaps.org).
